i.e. ferrites show this effect, tape wound amourphous cores also show this effect - in actuality all mag materials show this effect ...
The author mention the word ferrite in the paper only two times.
He gives his own paper as reference. So I had to dig more.
This is a very old paper and I have to put a screenshot:
More importantly, the results he presents are simulations and none are actual experimental measurements.
It is the same old relaxation dynamics. That is what I understand.
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I have difficulties to relate the recent discussion to the original question. It's about behavior of a soft magnetic core with DC and AC magnetization.
The question was badly asked: if I understand correctly, it can be recast as follows:
What will be the output of a transformer, assume no core saturation, if a 5V rectangular single pulse, riding on a DC offset of 5V, is applied to the primary? (1:1 primary:secondary)
Please excuse me if I have not understood the question.
My understanding is that the DC offset shifts the operating point on the B-H curve; if you assume no saturation, you will get a simple 5V pulse with the DC offset removed.